Review of soil thermal conductivity and predictive models

N Zhang, Z Wang - International Journal of Thermal Sciences, 2017 - Elsevier
Accurate prediction of soil thermal conductivity is crucial to the design of geothermal related
structures such as ground source heat pumps (GSHPs), borehole thermal energy storage …

Long-term thermo-mechanical behavior of energy pile in dry sand

VT Nguyen, AM Tang, JM Pereira - Acta Geotechnica, 2017 - Springer
A small-scale pile has been developed in the laboratory to investigate the thermo-
mechanical behavior of energy piles subjected to a significant number of thermal cycles. The …

A new generalized soil thermal conductivity model for sand–kaolin clay mixtures using thermo-time domain reflectometry probe test

N Zhang, X Yu, A Pradhan, AJ Puppala - Acta geotechnica, 2017 - Springer
As the demand of exploitation and utilization of geothermal energy increases, more
geothermal-related earth structures occur recently. The design of the structures depends …

Numerical modelling of thermo-active piles in London Clay

KA Gawecka, DMG Taborda, DM Potts… - Proceedings of the …, 2017 - icevirtuallibrary.com
Thermo-active foundations utilise heat energy stored in the ground to provide a reliable and
effective means of space heating and cooling. Previous studies have shown that the effects …

摩擦型能源桩荷载-温度现场联合测试与承载性状分析

路宏伟, 蒋刚, 王昊, 洪鑫, 史春乐, 龚红卫, 刘伟庆 - 岩土工程学报, 2017 - cgejournal.com
能源桩集地源热泵技术与建筑桩基于一体, 桩基承载性状受荷载-温度耦合作用而不同于常规
工程桩. 开展了昆山某摩擦型能源桩工程的荷载-温度现场联合测试, 测试了多级荷载水平与不同 …

Investigation of potential dragdown/uplift effects on energy piles

JS McCartney, KD Murphy - Geomechanics for Energy and the …, 2017 - Elsevier
This study focuses on the interpretation of axial strains in a pair of full-scale energy piles
beneath an 8-story building measured over the course of five years of geothermal heat …

Parameters for load transfer analysis of energy piles in uniform nonplastic soils

D Chen, JS McCartney - International Journal of Geomechanics, 2017 - ascelibrary.org
This study focuses on the use of a thermomechanical soil-structure interaction (load transfer)
analysis to assess the axial strains, stresses, and displacements during thermomechanical …

Investigation on the behaviour of a thermo-active diaphragm wall by thermo-mechanical analyses

D Sterpi, A Coletto, L Mauri - Geomechanics for Energy and the …, 2017 - Elsevier
The thermo-active diaphragm walls are traditional retaining structures that embed heat
exchangers for the exploitation of the near surface geothermal energy, used in the thermal …

Exploitation of geothermal energy using tunnel lining technology in a mountain environment. A feasibility study for the Brenner Base tunnel–BBT

F Tinti, D Boldini, M Ferrari, M Lanconelli… - … and Underground Space …, 2017 - Elsevier
Mountain tunnels can be a direct and indirect source of geothermal energy thanks to the use
of drainage water or the so-called thermal tunnel lining, respectively. The amount of …

Integrity testing of pile cover using distributed fibre optic sensing

Y Rui, C Kechavarzi, F O'Leary, C Barker, D Nicholson… - Sensors, 2017 - mdpi.com
The integrity of cast-in-place foundation piles is a major concern in geotechnical
engineering. In this study, distributed fibre optic sensing (DFOS) cables, embedded in a pile …